MY_REF technical description

[mauropenasa]

Free of charge to the little that have understanded something of my circuit, and to the DIYs members that have "bet" on my idea, investing the they money and their time. I thank George (Josef_K) for his help in the translation, and to have convinced me to publish this document.

GoodBye

Mauro

[Panelhead]

Originally posted by mauropenasa
Free of charge to the little that have understanded something of my circuit, and to the DIYs members that have "bet" on my idea, investing the they money and their time. I thank George (Josef_K) for his help in the translation, and to have convinced me to publish this document.

GoodBye

Mauro

Thank you for sharing your ideas and designs to some of us less gifted. The layout and features of the Reference A boards are at standard way above my usual cobbled up diy efforts.
Also, thank for sharing this paper on the design process.

George

[lumanauw]

Thanks alot, Mauro

[SheldonD]

Mauro:

Thank you very much for the explanation of your circuit.

Very generous of you to create document to go with your amp design.

Sheldon

[lumanauw]

Hi, Mauro,

How to calculate
-Ccmp+Rcmp
-Cff
-Cbf
-Cf
And what is the criterion of each?
- "My-ampli" uses only 1 capacitor in the place of Ccmp+Rcmp. Is it possible just to use 1cap only instead of (Ccmp+Rcmp)? Whats the difference?

I'm thinking about making your design but with full discrete components. What do you say about this?

[inguz]

Wonderful document, and a fascinating design -- many thanks. And also to Josef_K for the very clear translation.

[mauropenasa]

Hi all,
I even add the Italian version...

Ciao

Mauro

[Panelhead]

I would love to use some dicretes here instead of the LM3886. Should work fine, but may not equal the Referance as it is.
I have a few matched pairs of 2SJ162/2SK1058 mosfets that might be perfect. Guess I need to study the schematics a little.
Since the LM3886 is just a current pump, this is easier to do than it would be if the output stage was a voltage and current gain.

George

[carlmart]

Originally posted by Panelhead
I would love to use some dicretes here instead of the LM3886. Should work fine, but may not equal the Referance as it is.
I have a few matched pairs of 2SJ162/2SK1058 mosfets that might be perfect. Guess I need to study the schematics a little.
Since the LM3886 is just a current pump, this is easier to do than it would be if the output stage was a voltage and current gain.

You may clone the Musical Fidelity A-270, which Mauro has already mentioned. Though I don't know if those are the right MOSFETs for that project.


Carlos

[Ed LaFontaine]

I'm a little "late to the table". I benefit from your generosity.